Machine for swaging needle-blanks



(No Model.) 3 Sheets-Sheet 1.

L. B. MILLER.

MACHINE FOR SWAGING NEEDLE BLANKS.

No. 364,274. Patented June 7. 1887.

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3 Sheets-Sheet 2.

(No Model.)

L. B. MILLER. MAGHINE FOR SWAGING NEEDLE BLANKS.

No. 364,274. PatentedJune 7, 1887.

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(No Model.) 3 Sheets-Sheet 3.

L. B. LER.

MACHINE FOR SWA NEEDLE BLANKS. No. 364,274. Patented June 7, 1887 INVENTO WITNESSES l .2219. JIfiZZer; SQQ M B V ATTOEY pllur Washing c.

UNITED STATES PATENT OFFICE.

LEBBEUS l3. MILLER, OF ELIZABETH, NEW JERSEY, ASSIGNOR TO THE SINGER MANUFACTURING COMPANY OF NEW JERSEY.

MACHINE-FOR SWAGING NEEDLE-BLANKSr $PECIPICATION forming part of Letters Patent No. 364,274, dated June 7, 1887.

Application filed February 12. 1987. Serial No. 237,398.

To all whom it may concern:

Be it known that I, LEBBEUS B. MILLER, a citizen of the United States, residing at Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful ImprovementsinMachines forSwagingNeedle- Blanks, ofwhich the following isa specification, reference being had therein to the accompanying drawings.

My invention relates to a machine such as is shown by the patent to WV. H. Dayton, No. 268,874, dated December 12, 1882, for swaging needle-blanks and other similar articles. In the machine shown by the said patent the dies are carried by a rotary holder and are forced toward each other by a circularly-arranged series of rollers, against which the outer ends of the dies, or the contact-blocks forming continuations of the said dies, impinge as the dieholder revolves.

In the machines of the class referred to ad j ustment of the dies, either to compensate for the loss of met-a1 by wear or resurfacing, or for swaging different sizes of needles, has heretofore been effected by inserting steel plates or filling-pieces of varying thickness between the dies and the contact-blocks; but this means of adjustment has been found objectionable and unsatisfactory, and the object of my invention is to overcometheinconvenienceincidental thereto. This object I accomplish by providing wedges, which are interposed between the dies and the contact blocks, and which may be adjusted as may be desired to adjust the dies.

In the accompanying drawings, Figure 1 is a sectional view of a rotary die-holder and the parts carried thereby embodying my invention. Fig. 2 is an end or face view of the same. Fig. 3 is a view similar to Fig. 2, showing the die-holder and the parts rotating therewith, and also the rollers for forcing the dies toward each other, and the stationary cylinder or shell within which the said rollers are housed; and Figs. 4, 5, 6, and 7 are enlarged detail views.

A denotes the rotary die-holder, which is grooved or recessed for the reception of the dies 13 and the contact-blocks C, and between the said blocks and dies are interposed the adjusting-wedges D, the outer ends of which are formed with right'angular arms (7, pro- (No model.)

vided with slots or openings d for the free passage of the screws F, the latter having solid collarsfimpinging against the inner sides of the said arms. The said screws are also provided with lock-nuts G, and between the said nuts and the outer faces of the said wedges I prefer to interpose the washers b. The inner ends of the contact-blocks'O are beveled to correspond to the bevel of the wedges, and as it is desirable that the latter should have a bearing against the entire surfaces of the ends of the said blocks and of the dies, the dieholder is provided with recesses a, into which the ends of said wedges may project as they are adjusted inward. The rollers E, by which the dies are forced inward, are arranged in a circle inside of the stationary shell or cylinder H, in which they are retained by the annular bearing-plate I.

. From the foregoing it will be apparent that adjustment of the dies may conveniently be effected by turning the screws F in or out, the accidental displacement of the said wedges being prevented by the lock-nuts G, which are tightened after adjustment of the screws. The'slots (1, formed in the arms d of the wedges for the passage of the screws F, permit the necessary side movement of the said wedges as they are adjusted in and out.

To provide for accurate adjustment of the wedges, and to secure exactly the same adjust ment of both wedges without difiiculty, l prefer to key the washers b to the screwsF, so that they will turn with the latter, said washers for this purpose being furnished with index-figures and the outer faces of the wedges with gage-marks, (see Fig. 6,) so that the extent of the rotation of the said screws will be indicated by the washers. The wedges are also preferably provided at their outer ends with graduated scales 0; and by means of these scales and the index washers adjustments equaling in exactness those determined by micrometer gages may conveniently be effected. This feature of my invention will be readily understood by reference to Figs. 4, '5, 6, and 7, the last-named figure showing a notch, b, in one of the washers for loosely keying it to its screw, so that it will turn with the latter, although the screw will be free to movelengthwise through the washer.

forth.

2. The combination, with the die-holder and the dies and contact-blocks carried thereby, of the wedges interposed between the said dies and blocks, and the screws for adjusting said wedges, substantially as set forth.

3. The combination, with the die-holder and the dies and contact-blocks'carried thereby, of the wedges D,interposed between said dies and blocks and provided with slotted arms d, the screws F, having the collars f, and the locknuts G, substantially as set forth.

4c. The combination, with the die-holder A, having the recesses a, of the dies and contactblocks carried by said holder, and the adj ustable wedges interposed between the entire adjacent surfaces of the said dies and blocks and adapted to extend into said recesses when adjusted'inward, substantially as set forth.

5. The combination, with the dieholder, the dies, the contact-blocks, the wedges, and the screws F, having collars f, of the lock-nuts, and the washers'interposed between said nuts and the outer ends of the arms of the said wedges, substantially as set forth.

6. The combination, with the die-holder, the dies, and the contact-blocks, of the wedges interposed between the said blocks and dies, the screws for adjusting said'wedges, the washers keyed to said screws and provided with indexfigures, and the lock-nuts for securing said screws after adjustment, substantially as set forth.

' 7. The combination, with the die-holder, the dies, and the contact-blocks, of the wedgesinterposed between the said dies and blocks and provided at their outer ends with graduated scales, the screws for adjusting said wedges, the index-washers, and the lock-nuts, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

LEBBEUS B MILLER.

\Vitnesses:

PHILIP DIEnL, J. G. GREENE. 

